Wick-adjusting mechanism for oil burners



July 20 1926.

M. RESEK ET AL WICK ADJUSTING MECHANISM FOR OIL BURNERS Filed Nov. 3, 1922 4 Sheets-Sheet 1 aw, M y/m July 20 1926.

M; \RESEK El AL WICK ADJUSTING MECHANISM FOR OIL BURNERS 3. 1922 4 Sheets-Sheet 2 Filed Nov.

July 20 1926.

M. RESEK ET AL WICK ADJUSTING MECHANISM FOR GIL BURNERS Filed Nov. 3, 1922 4 Sheets-Sheet 5 Jul 20 1926, 5 ,8 7

v M. 'RESEK Er AL WICK ADJUSTING MECHANISM FOR OIL BURNBRS Filed Nov. 3, 1922 '4 Sheets-Sheet 4 Patented July 20, 1926.

UNITED STATES PATENT OFFICE.

MARC RESEK AND CHARLES J. KESSLER, F CLEVELAND HEIGHTS, OHIO, ASSIGNORS TO PERFECTION STOVE COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

PICK-ADJUSTING MECHANISM FOR OIL BURNERS.

Application filed November Our invention relates to oil burners, and it is directed more particularly to a modification or further development of the wick controlling mechanism which constitutes the subject matter of application Serial No.

596,970, filed October 26, 1922, jointly by Lee S. Chadwick and Marc Resek, the lat ter being one of the present applicants.

The wick guiding and adjusting means disclosed in the above application were devised for burners of ordinary size and in connection with such burners they prove thoroughly satisfactory. However, when incorporated in larger or so-called giant burners, difficulties arise which are due to the different proportions and peculiarities of the larger burner. For example, the outer wick tube of the larger burner is of the same height as that of the smaller burner although it is of considerably greater diameter. This lessens its stability and makes it more liable to distortion. The proportions of the wick and wick carrier that are used in the larger burner diflerentiate from those of the corresponding elements of the smaller burner in the same way, and as a consequence thereof the tilting of the wick to a degree which would be negligible in the smaller burner becomes so exaggerated in the larger burner as to affect the adjustment of the wick and greatly impair the character of the flame. In the smaller burner-by reason of the rigidity of the wick tubes, the comparative lightness of the wick and car- 5 rier, their proportionately greater longitudinal support and guidance, and the smallness of the wick elevator-the wick tubes could be relied upon to guide the wick and wick elevator; whereas in the larger burner, this would be impractical because any tilting tendency of the wick, the elevator, or both would cause the wick and elevator to bind or drag against the outer wick tube, and this would distort said tube which would further aggravate the conditions.

It is the object of our invention to provide. in a burner of the so-called giant class, a wick sustaining element which is restricted to a definite path of movement in a vertical direction in absolute parallelism with the desired movement of the wick and to so connect the wick with said element that the wick will be properly balanced, so to speak, within the wick space and lifted 3, 1922. Serial N0. 598,932.

at substantially diametrically opposite points or at points equally spaced apart circumferentially of the wick so as to avoid all tendency of the wick to tilt, and additionally to positively guide the wick independent ly of said element, thereby to obviate the difficulties above set forth.

Further objects, pertaining to detailed improvements and structural refinements, will become apparent as this description proceeds.

In the drawings which accompany and form a part hereof, and wherein similar reference characters designate corresponding parts throughout the several views, Fig. 1 is a sectional side elevation of a burner embodying our improvements and equipped with an air distributing member or flame spreader and with a drum (only the lower part of the latter being included) both of which are commonly employed with burners of this character; Fig. 2 is a sectional plan on the line 22 of Fig. 1, certain parts below the plane of section being omitted; Figs. 8, 4 and 5 are details of the wick elevator, Fig. 3 being a section on the correspondingly numbered line of Fig. 4, while Fig. 4 is a section on the line 44: of Fig. 3; Fig. 6 is a vertical section through the burner, at right angles to Fig. 1, and substantially on the line 66 of Fig. 2 and looking toward the rear or in the direction of the arrows, the air distributing member or flame spreader and the drum being omitted; Fig. 7 is a perspective view of the shield that is shown applied to the burner in Figs. 1 and 6; Fig. 8 is a perspective view of some of the parts of the wick raising mechanism, the segmental shaped wick elevator and the channel shaped rack member being prominent among them; and Fig. 9 is a similar View of certain of the parts shown in Fig. 8 in separated condition.

The burner, generally, is designated A, and in Fig. 1 is shown as equipped with an air distributing member or flame spreader B, and with a drum C.

The air distributing member or flame spreader forms no part of our present invention and for a full and complete disclosure of the same, reference may be had to the application of Lee S. Chadwick, Serial No. 571,671, filed June 29, 1922; and the latch mechanism for locking the flame spreader to parts of the burner is covered in a joint'application ot'Lee S. Chadwick and Marc Resek, Serial No. 528,838, filed January v12, .1922. .The drum vC, with its means o'fsupport and .connection with the burner, is shown in the application of Lee S. Chadwick, Serial No. 539,079, filed February 25, 1922.

The burner A includes an outer wick tube 1, and an inner wick tube 2 which are joinetl *together at :their .lower :ends by an -anm'ilar wall 3, "thereby to enclose :between the tubes a wick space lwhich is supplied with oil, from a suitable source, through an elbow litting 75 that is 1 applied to the 6 lower rear side of the router wiclrtube.

The inner wickitu'be is substantially cylindrical for a suita'ble :distance downwardly from its-upper end. This cylindrical por- 'tioniis'designated '6 inf-Figs. :1 and 6. Below the portion 6 the rear side of the inncrgwick tube isrconstructed on ascurve which issul istantiall'y rconcentric with the outer wick i'tube, *but at substantially diametrically op- :posite points the'walljof the *tube jog-s in- -wardly :as indicated at .28 ":in TFig-s. 1 and 2, and from fthese points :it gradually recedes inwardly 1130 its forward central portion where'it is formedwith are-entrant part 10; iForithezpurposcsof description we shall wreferto the enlargementqof the :wickspace, ibe'tween the forward portion of the outer "wick tube and ithe :receding part of the in- ?Vner wick itube, as the elevator compartment l1; and :to the :space enclosed by the re- -entrantpart 10,tastthe offset 12 of the wick rspace. Itwill becobservechthat, in-the pres- :ent construction, :the :annular wall 3 is formed "by an inwardly directed integral -fiange rof tthe outer Wick tube, and at its "forwardss'idejs extended to t-form a bottom wall '13 for the aforesaid 'oflfset portion 12 of "the wick space. The ofiset portion is closed at its :upperaend by-a wall 14: which visformed :by aniextension of the cylindrical 11301111131116 of the :inner wick-tube. Rising 'aabovezthe top wall 14 is a sleeve 15 which isiinaxial alignment with a tube 17 that idepends from-the lower wall 13, said tube -beingiclosedzat. its lowerend as-by a cap 18. A ;ro d:20 is 1 guided at its upper 1 end within st-he :'sleeve :15 and :at its :lower end within the :tube17. .At about :its vertical center, the rod :is reduced :in diameter, as shown art 21, :for: connection with the wick elevator :in angleparts 24rhaving verticalflanges-25 Hind horizontal flanges 26, the latter being extended rearwardly beyond the former as .shown in Fig. 6.

-er end oi the burner.

indicated at 26. It has a central rearwardly extending branch 27. In cross section, the yoke is formed to provide a rear; vertical flange 28 and a front horizontal flange 29. The stih'ener 22 which is also segplaced together as suggested, and securely united by solder or other mean-sythey may be apphedto theired 20by engaging the rear ends oi the parts 3 along the opposite sides-o tle l "hi 1. i ieuucec portion 21 or u e rod 20 and turning'said parts inwardly to meet.

each-other to the rear thereof. lllhen so appliedtothe rod, the rear edge of-thearm of the stiflener, which is en "red on the radius of the reduced portion of therod, engages said portionimmediately adjacent the enlargement of the .rod thcrebelow, while the rear end of the arm 2? of the yoke, curved on the major radius of .rod abuts the rod immediately above the re dnced portion 21 (see Fig. I

We shall now describe the mechanism by means or" which the wick is raised and lowered through the intervention of the rod 20.and the wick elevator .22. The rod 20 terminates at its upper end in a head 20, which is separated from the body portion of the red by a neck- 20. A rack member 3.5, preferably of sheet metal and of channeled formation, is adapted to have con .nection with the rod 20 through its errtendcd sideilangesSG and 3 The connection ispreferably effected by engaging the .inturned bifurcated upper end 89 of the flange 37 aboutthe neck 20* of the rod, and a keyhole slot ll) that is formed in the inturned upperendoi the flange over the .head 20 and shifting it laterally so as to cause the restricted end of the slot to embrace theneck, in which condit on the parts may be securely held by turn tongue 41 of the flange 8.6 donwwarrl OTGT the flange 87 and-engagingit throu a an aperture #12 that .is formed therein, as clear One of the side flanges the member is provided with a series of slots l8 which continue upwardly a suit able distance from its lower end to effect a rack.

rrrranged to mesh with therack is a pinion 4:5 that is secured to a spindle 4:6. The spindle is journaled in bearing apertures in the oppositebranches 4 4' and 48 of a bracket 49 that is secured to and depends ironithe'low The iorward'end of the spindle is equipped with a hand'wheel 50 Cir by means of which the spindle may be turned. From the foregoing description it is evident that when the spindle is rotated it will move the rack member 35 vertically and said movement will be transmitted through therod 20 to the wick elevator 22.

A pair of wick grips 55, that are suitably formed of spring brass or other appropriate resilient material, have their lower ends shaped (as shown in Fig. 9) to extend about and interlock with the extensions 24 of the wick elevator (see. Fig. 6). The rearwardly extended portions 26 of the flanges 26 are bent downwardly and forwardly beneath the lower ends of the wick grips to clamp them to the elevator after which the parts are soldered or otherwise secured together. This effects a very substantial connection between the grips and elevator. The grips are formed at their upper ends with diverging branches which are flanged inwardly to provide lips 57. It will be noted from Figs. 3, 8 and 9 that the horizontal flanges 26, which constitute seats for the wick carrier, as will be hereinafter explained, are spaced above the plane of the flange 29 of the elevator.

The wick 60, which is provided with the usual wick carrier 61 that encases its lower portion and is inturned inwardly and upwardly about its lower end, is adapted to rest upon the horizontal flanges or seats 26, and to fit between the vertical flanges 25 and the opposed parts of the grips 55 (Fig. 6). When the wick is thus resting upon the elevator, the upper end of its carrier is in a position to be engaged beneath the lips 57 of the grips 55.

To insert a wick within the burner, the elevator is raised to its highest position when the grips 55 will protrude above the wick tubes and by reason of their resiliency and formation will spread out considerably. The wick is then lowered intothe wick space until the bottom of its carrier engages the horizontal flanges or seats 26. The spindle 46 is now rotated in a direction to lower the elevator, and as it and the wick descend, the grips 55 are forced inwardly by contact with the outer wick tube to engage their lips 57 over the upper edge of the wick carrier. To remove the wick, the foregoing operation is reversed, and upon returning the elevator to its highest position, the grips will automatically separate and release the carrier so that the wick and carrier may be lifted bodily from the burner.

Situated to the rear of and guided by the rear branch 48 of the bracket 49 is wick stop mechanism designated generally by the letter D. This mechanism is fully disclosed in the application of Lee S. Chadwick, Serial No. 528,813 filed January 12, 1922; and, as will be seen by reference to said application, the mechanism coacts with the wick adjusting spindle to arrest the movement of the wick when the latter has been elevated to a predetermined height, and it includes the air controlling member or flame spreader B through the intervention of which said mechanism is coupled with the wick raising spindle when said member is engaged and lifted. by the burned portion of the wick, the mechanism further serving to lift the flame spreader to operative position when the wick occupies any position within its burning range,

To conceal those parts of the wick stop mechanism which extend below the burner tubes and to protect them against being tampered with unnecessarily, we provide a shield 65, shown in perspective in Fig. 7, and as applied to the burner in Figs. 1 and 6. A flange 66, which joins the body portion of the shield through a bead 67, extends about the shield except across its up per end where the shield is notched at 68. A part of the material struck from the notch 68 is flanged rearwardly and inwardly to provide lips 70 which engage the rear side of the branch 48 of the bracket 49, thereby to hold the upper end of the shield against displacement. The notch 68 also provides clearance for the spindle 46. In addition to the rigidity imparted to the shield by the flange 66 and the head 67, it is further stiffened by a rib 71 which extends vertically at about the transverse center of the shield and terminates at its upper end in about the plane of the upper edge of the shield, Near its lower edge the shield has a depression 7 3 that is slotted at 74 for engagement over a spring tongue 75 which extends forwardly and upwardly from the lower end of the branch 48 of the bracket 49 and in the present instance the tongue is shown as formed by the extended lower end of the brace '7 6 which ties the lower end of said branch 48 to the rear side of the burner. In producing a slot 74, a part of the metal struck therefrom is preferably inclined forwardly to provide a lip 77 that is designed to be engaged over a hump 7 8 of the tongue 75 and contact at substantially right angles with the rearwardly and downwardly inclined upper surface of the tongue so as to effect a more secure hold upon the tongue. As previously mentioned, the lips 70 secure the shield to the bracket 49 so as to hold its upper end against appreciable front and rear movement, and the parts are so proportioned that when the tongue 77 is engaged over the hump 78 of the tongue 75, the lower end of the shield is constrained rearwardly with the shield under slight tension, thus securing the shield against loose ness.

Having thus described our invention, what we claim is:

1. In an oil burner, an annular oil reservoir having a lateral ofl'set that is provided at the bottom with a tubular extension, the offsetand its extension beingin axial parallelism with the reservoir, a rod having its lower end guided within said extension and its upper end within the ofset .of the reservoir, a wick elevator within the annular reservoir and connected to the aforesaid rod, a wick occupying the reservoir and resting upon the wick elevator, andmeans for raising and lowering the rod thereby to similarly adjust the wick.

2. In an oil burner, an annular oil reservoir having a lateral offset that is provided at top and bottom with axially aligned tubular extensions, the oflct and its cxtensionsbeingin axial parallelism with the reserv ir,a rod having its upper and lower end guided within said extensions, a wick elevator within the annular reservoir and connected-to the aforesaid rodintermediate its ends, an annular wick occupying the reservoir and'resting upon the wick elevator, andmeans for raising and lowering the rod thereby to similarly adjustthe wick.

3. In an oil burner, an annular oil reservoir having a lateral ofl'set which is provided at top and bottom with axially aligned tubular extensions,.a rodhaving ends guidedwithin said extensions, a segmental wick elevator withinthe annular reservoir and extending part way about the same and having a central branch extending into the offset and connected to the afore said red, the wick elevator having raised seats that are substantially diametrically opposed to each other, a wick and its can rier resting-upon said seats, means for separably connecting the carrier to the elevator, guiding means for retaining the wick and carrier in proper position within the reservoir, and means for raising and lowering the rod iereby to similarly adjust-the wick.v

4. In a burner of the character set forth, the combination of ,a structure enclosing a wick space and having a lateral extension the interior whereof con'iniunicates with the wickspace, a wick withinth-e wick space, a membersupported at top-and bottom for vertical movement by and within the lateral extension of thestructure, connections between said member intermediate its ends and the wick, a member exterior of the lateral extension and having its upper-end connected to the corresponding end of the former member and means for adjusting the wick through the intervention of said members.

5. In a burner of the character set forth, thecombination of a structure enclosing a wick space and having a lateral extension the interior whereof opens into thewick space, a wick within the wick pace, a rod within the lateral extension, said rod having intermediate its ends a reduced portion thereby to provide'opposed shoulders spaced apart-longitudinally of the rod, a wick elevator within-the wick space'bel'ow the wick, said wick elevator comprising a sheet metal yoke and a sheet-.metal stiffener that are suitably connected together, the wick elera or having :a part projecting into said lateral extension, said part being engaged about the reduced portion of the rod and fitting between the aforesaid opposed shoulders, and means for adjusting the rod vertically thereby to raise and lower the wick. I

'6. In a burner of the-character set forth, the combination of a structure enclosing a wick space and having a lateral extension tie interior whereof opens into the wick space, a wick within the wick space, "a rod within the'lateral extension, said rod having a reduced portion intermediate it. ends, a ick elevator within'the wick space below the wick, said wick elevator comprising a sheet metal yoke having an arm projecting into the lateral extension, the armbeing of widthisubstantially equal to the diameter-of the rod and haviiw its rear end shapedto conform to and engage with the .rod immediately above its reduced portion, asheetmetal stii'l'ner applied to the lower side of said yoke and having an arm of substantially the same width as, andbelow, thearin of the yoke, the arm of the stiflner having si'de flanges which are arranged to 'be enalong the opposite sides of, and brought together beyond, the reduced portion of the rod while the end of said arm conforms to the shape of and is engaged witn the reduced portion of the rod and rests upon the shoulder formed by the enlargement of the rod below said-reduced portion,

for ecuring the yoke and stiffener 'together, and means for adjusting the rod vertically thereby to raise and lower the wick.

having arms extending into the aforesaid lateral extension, the arms terminating in curved edges designed to fit the-contour of the aforesaid rod, one of the-arms engaging the rod immediately adjacent its reduced portion while the other arm engages the reduced portion immediately adj acent its opposite end, there being flanges extending rearwardly along the edges of the arms and which are engaged about the reduced portion of the rodandfit between the shoulders was at the opposite extremities of said portion, and means for adjusting the rod vertically, thereby to raise and lower the wick.

8. In a burner of the character set forth, the combination of astructure enclosing a wick space and having a lateral extension the interior whereof opens into the wick space, a wick within the Wick space, a rod within the lateral extension, said rod having a reduced portion intermediate its ends, a wick elevator within the wick space below the Wick, said wick elevator comprising a sheet metal yoke having at one side a vertical flange and at its opposite side a horizon tal flange which is in substantially the plane of the edge of the. former flange, a sheet metal stiffener having at one side a vertical flange which is engaged within the corresponding flange of the yoke and a horizontal flange engaged beneath the horizontal flange of the yoke, the yoke and stiffener having arms extending into the aforesaid lateral extension, the arms terminating in curved edges designed to fit the contour of the aforesaid rod, one of the arms engaging the rod immediately adjacent one end of its reduced portion while the other arm engages said reduced portion immediately adjacent its opposite end, there being flanges extending rearwardly along the edges of the arms and which are engaged about the reduced portion of the rod and fit between the shoulders at the opposite extremities of said portion, and means for adjusting the rod vertically, thereby to raise and lower the wick.

9. In a burner of the character set forth, the combination of a structure enclosing a wick space and having a lateral extension the interior whereof opens into the Wick space, a wick within the wick space, a rod within the lateral extension, said rod having intermediate its ends a reduced portion thereby to provide opposed shoulders that are spaced apart longitudinally of the rod, a wick elevator within the wick space below the wick, said wick elevator having a part projecting into said lateral extension, said part being between the aforesaid opposet shoulders, and means for adjusting the rod vertically thereby to raise and lower the wick.

In testimony whereof, we hereunto afiix our signatures.

MARC RESEK. CHARLES J. KESSLER. 

